INSTA-PARENT BLUES

Not only do Barry and wife Iris (Candice Patton) have to get to know Nora, their adult daughter from the future (Jessica Parker Kennedy), but the West-Allens also have to clean up the mess she’s run from. “It’s a big mistake,” says Helbing, adding that, even though Nora is from another era, “this is not a time-travel season.”

MORE RALPH!

The Elongated Man/former disgraced cop Ralph (Hartley Sawyer) will stretch even further now that he’s a series regular. “We’re going to start exploring a little bit of the detective-ness of Ralph,” Sawyer says.

POWER SOURCING

After learning that scientist Caitlin’s (Danielle Panabaker) Killer Frost persona has been around since she was a kid (and was not caused by the explosion that gave Barry & Co. their powers), the team searches for who did this to her and why.